Compress Your PDF
Files

PDF compression is the process of reducing file size while preserving the content and visual quality of the PDF. This tool cleans up unused objects, removes incremental save data, and optimizes the PDF structure to reduce file size. Since it runs in your browser, your files never leave your device and your privacy is protected. Compression ratio varies depending on the PDF's structure and content.

No. This tool does not degrade visual quality or alter content. It optimizes the PDF structure and removes unused data to reduce file size without quality loss. Image quality, text clarity, fonts, and page layout are all preserved. Only unnecessary duplicates and incremental save data are removed.

Yes. This tool runs entirely in your browser. Your PDF file is never sent to any server — all processing happens on your device using the PDF-Lib library. No data is permanently stored or shared with third parties after processing. You can confidently compress your sensitive documents.

There is no size limit. However, very large files (100 MB+) may process more slowly depending on your browser's memory capacity. Modern browsers can typically handle PDFs up to 500 MB without issues. Processing time varies based on file size and page count. For faster results, we recommend keeping your file size reasonable before compression.

Compression ratio depends on the PDF structure. On average, expect a 10–30% size reduction. PDFs that have undergone many edits or use incremental saving can achieve higher ratios. Already optimized PDFs may see lower compression. You can lower the quality setting for more aggressive compression.